Lifting table with self-locking hand-cranking device

Abstract

The utility model relates to a lifting table, in particular to a lifting table with a self-locking hand-cranking device, which comprises a frame body assembly, the frame body assembly comprises a first lifting assembly and a second lifting assembly, and the first lifting assembly and the second lifting assembly are oppositely arranged and spaced by a preset distance; the two ends of the first connecting shaft are connected with the sides, close to each other, of the first lifting assembly and the second lifting assembly respectively. And the self-locking assembly is arranged on the outer side of the first lifting assembly, and the self-locking assembly is further connected with a first connecting shaft and is arranged to be capable of driving the first connecting shaft to rotate. According to the utility model, the advantages of convenience in use, high practicability and self-locking hand-cranking device can be realized by effectively utilizing the structural configuration of the hand-cranking device.

Description

Technical Field

[0001] The present application relates to a lifting table, and more particularly to a lifting table with a self-locking hand-crank device. Background Art

[0002] Our company's previous lifting table has a patent number of "CN202120963214.4", and the patent name is "A lifting table with a double-layer table top". The way to lift the lifting table is to drive the lifting components through a manual operating handle to raise or lower the height of the lifting table. However, in the actual application of this product, if the user places more items on the lifting table, it is easier to cause the lifting table to move closer to the ground, and the height of the lifting table cannot be limited. If a lifting component with good self-locking properties is used, the price of this product will be higher and not competitive in the market. Therefore, improvements are needed to improve the self-locking performance of the lifting table.

[0003] Therefore, there is a need to provide a lifting table which is easy to use, highly practical and has a self-locking hand-crank device. Utility Model Content

[0004] The main purpose of the present application is to provide a lifting table with a self-locking hand crank device, wherein the lifting table with a self-locking hand crank device can effectively utilize its own structural configuration to achieve high practicality and the advantages of a self-locking hand crank device.

[0005] Another object of the present application is to provide a lifting table with a self-locking hand-cranked device, wherein the lifting table with a self-locking hand-cranked device comprises a frame assembly, a first connecting shaft and a self-locking assembly, the frame assembly comprises a first lifting assembly and a second lifting assembly, the first lifting assembly and the second lifting assembly are arranged opposite to each other and are spaced a predetermined distance apart, the two ends of the first connecting shaft are respectively adjacent to the side where the first lifting assembly and the second lifting assembly are close to each other, the self-locking assembly is arranged on the outside of the first lifting assembly, and the self-locking assembly is also connected to the first connecting shaft, and is arranged to drive the first connecting shaft to rotate, and the self-locking assembly comprises a handle, wherein the handle is arranged to be rotatable by a predetermined angle to realize the rotation of the handle or to abut against an external table board, wherein when the handle is rotatable, the first lifting assembly and the second lifting assembly operate, and conversely when the handle abuts against the external table board, the handle is arranged to play a self-locking role to prevent the first lifting assembly and the second lifting assembly from operating in reverse.

[0006] Another object of the present application is to provide a lifting table with a self-locking hand-cranked device, wherein the lifting table with a self-locking hand-cranked device has a simple structure and is easy to operate, does not involve complicated manufacturing processes and expensive materials, has high economy, and is easy to promote and use.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a lifting table with a self-locking hand-crank device, wherein the lifting table with a self-locking hand-crank device comprises:

[0008] A frame assembly, the frame assembly comprising a first lifting assembly and a second lifting assembly, the first lifting assembly and the second lifting assembly are arranged opposite to each other and are separated by a predetermined distance;

[0009] a first connecting shaft, wherein both ends of the first connecting shaft are respectively connected to the sides of the first lifting assembly and the second lifting assembly that are close to each other; and

[0010] A self-locking component is arranged on the outside of the first lifting component, and the self-locking component is also connected to the first connecting shaft and is arranged to drive the first connecting shaft to rotate.

[0011] In one or more embodiments of the present application, the first lifting assembly includes a first base plate, a first fixed tube and a first lifting tube, the first base plate is arranged on the ground, one end of the first fixed tube is fixedly connected to a side of the first base plate away from the bottom surface, and the first lifting tube is movably arranged in the first fixed tube.

[0012] In one or more embodiments of the present application, the second lifting assembly includes a second base plate, a second fixed tube and a second lifting tube, the second base plate is arranged on the ground, one end of the second fixed tube is fixedly connected to the side of the second base plate away from the bottom surface, and the second lifting tube is movably arranged in the second fixed tube.

[0013] In one or more embodiments of the present application, the connecting assembly includes two first fixing frames, which are arranged opposite to each other and spaced a predetermined distance apart, and one end of the two first fixing frames is fixedly connected to a side of the first lifting tube close to the second lifting tube.

[0014] In one or more embodiments of the present application, the connecting assembly further includes two second fixed frames, the two second fixed frames are arranged opposite to each other and spaced a predetermined distance apart, and one end of the two second fixed frames is fixedly connected to a side of the second lifting tube close to the second lifting tube, and the connecting assembly further includes two movable frames, one end of the movable frames is respectively sleeved in the two first fixed frames, and the other end of the movable frames is respectively sleeved in the two second fixed frames.

[0015] In one or more embodiments of the present application, the self-locking assembly includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged opposite to each other and separated by a predetermined distance, the first connecting plate has a first assembly hole, and the second connecting plate has a second assembly hole.

[0016] In one or more embodiments of the present application, the self-locking assembly also includes a second connecting shaft, a rotating block, a second connecting rod and a cover plate, the cover plate is fixedly connected to a side of the first connecting plate close to the first fixed frame, and the cover plate and the first connecting plate together form a cavity, and the rotating block is rotatably arranged in the cavity, one end of the second connecting shaft passes through the first lifting tube and faces the end of the first connecting shaft, and the other end passes through the cover plate, the rotating block, the first assembly hole and the second assembly hole in sequence, and is placed outside, in addition, one end of the second connecting rod abuts against a side of the first connecting plate close to the second connecting plate, and the other end also passes through the second assembly hole and is placed outside.

[0017] In one or more embodiments of the present application, one end of the rotating block is placed in the first assembly hole, and the other end is rotatably connected to the side of the cover plate close to the first connecting plate. One end of the second connecting rod has a matching hole, and the matching hole passes through the second connecting rod, and one end of the first connecting shaft away from the first fixing frame is placed in the matching hole. In addition, the matching hole is a hexagonal hole, and the cross-section of the first connecting shaft is hexagonal.

[0018] In one or more embodiments of the present application, the self-locking assembly also includes a handle, the handle having a connecting portion, an extending portion and a gripping portion, the two ends of the extending portion are respectively connected to the connecting portion and the gripping portion, and the connecting portion and the gripping portion are both perpendicular to the extending portion, the connecting portion is parallel to the gripping portion, wherein the end of the second connecting rod passing through the second assembly hole also has a second notch, the second notch also penetrates the second connecting rod, and the middle section of the second notch is also connected to the matching hole, wherein the end of the connecting portion facing away from the extending portion is rotatably disposed in the second notch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The figure shows a structural schematic diagram of a lifting table with a self-locking hand-cranked device.

[0021] Figure 2 The diagram shows a partial structural diagram of a lifting table with a self-locking hand-cranked device Figure 1 .

[0022] Figure 3 Pictured Figure 2 A is an enlarged view of the middle image.

[0023] Figure 4 Pictured Figure 2 Enlarged view of B.

[0024] Figure 5 The diagram shows a partial structural diagram of a lifting table with a self-locking hand-cranked device Figure 2 .

[0025] Figure 6 The diagram shows a partial structural diagram of a lifting table with a self-locking hand-cranked device Figure 3 . DETAILED DESCRIPTION

[0026] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0027] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0028] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0029] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0030] Schematic diagram of a lifting table with a self-locking hand crank

[0031] refer to Figures 1 to 6According to a preferred embodiment of the utility model, a table frame is installed on the top surface of the table legs. It should be noted that the lifting table with a self-locking hand-cranked device includes a frame assembly, and the frame assembly includes a first lifting assembly 10 and a second lifting assembly 20. The first lifting assembly 10 and the second lifting assembly 20 are arranged opposite to each other and are separated by a predetermined distance.

[0032] It should be noted that the first lifting assembly 10 includes a first base plate 11, a first fixed tube 12 and a first lifting tube 13. The first base plate 11 is arranged on the ground, one end of the first fixed tube 12 is fixedly connected to the side of the first base plate 11 away from the bottom surface, and the first lifting tube 13 is movably arranged in the first fixed tube 12. Specifically, the first lifting tube 13 is sleeved in the first fixed tube 12. It should be noted that the first lifting assembly 10 also includes a first driving component, which is arranged in the first lifting tube 13 and is configured to drive the first lifting tube 13 to a predetermined height. It should be noted that the first driving component is a prior art and can be obtained by users through purchase. Its implementation method can preferably be the patent previously applied by our company, whose patent number is "CN202120920428.3" and the patent name is "A transmission tube assembly for a lifting table".

[0033] It should also be noted that the second lifting assembly 20 includes a second bottom plate 21, a second fixed tube 22 and a second lifting tube 23. The second bottom plate 21 is arranged on the ground, one end of the second fixed tube 22 is fixedly connected to the side of the second bottom plate 21 away from the bottom surface, and the second lifting tube 23 is movably arranged in the second fixed tube 22. Specifically, the second lifting tube 23 is sleeved in the second fixed tube 22. It should be noted that the second lifting assembly 20 also includes a second driving component, which is arranged in the second lifting tube 23 and is configured to drive the second lifting tube 23 to rise and fall to a predetermined height, and the implementation of the second driving component is consistent with that of the first driving component.

[0034] It should be noted that the frame assembly also includes a connecting assembly 30, the two ends of which are respectively connected to the sides of the first lifting assembly 10 and the second lifting assembly 20 that are close to each other, and the connecting assembly 30 is arranged horizontally and is flush with the height of the first lifting assembly 10 or the second lifting assembly 20.

[0035] It is worth mentioning that the connection assembly 30 includes two first fixing frames 31, the two first fixing frames 31 are arranged opposite to each other and are spaced apart by a predetermined distance, and one end of the two first fixing frames 31 is fixedly connected to the side of the first lifting tube 13 close to the second lifting tube 23, and the connection assembly 30 also includes two second fixing frames 32, the two second fixing frames 32 are arranged opposite to each other and are spaced apart by a predetermined distance, and one end of the two second fixing frames 32 is fixedly connected to the side of the second lifting tube 23 close to the second lifting tube 23, and the specific connection mode of the first fixing frame 31 and the first lifting tube 13 or the second fixing frame 32 and the second lifting tube 23 can be implemented as a bolt connection, thereby limiting the position of the first fixing frame 31 or the second fixing frame 32. In addition, the two first fixing frames 31 and the two second fixing frames 32 are spaced apart by a predetermined distance, and the two first fixing frames 31 and the two second fixing frames 32 are both implemented as square tubes.

[0036] The connecting assembly 30 further comprises two moving members 33, one end of the moving member 33 is respectively sleeved in the two first fixing frames 31, and the other end of the moving member 33 is respectively sleeved in the two second fixing frames 32. It is worth mentioning that the two first fixing frames 31 are configured to be movable in a direction away from the two moving members 33 by a predetermined distance, and the two second fixing frames 32 are configured to be movable in a direction away from the moving member 33 by a predetermined distance. It should be understood by those skilled in the art that the connection mode of the moving member 33 and the first fixing frame 31 or the second fixing frame 32 can be that both ends of the moving member 33 have a first notch 3301 with an opening, and a roller is disposed in the first fixing frame 31 or the second fixing frame 32, and four rollers are respectively rotatably disposed in the four first notches 3301, and an external screw passes through the first fixing frame 31 or the second fixing frame 32 to limit the position of the roller.

[0037] It should be noted that the lifting table with a self-locking hand-cranked device also includes a first connecting shaft 40, and the two ends of the first connecting shaft 40 respectively pass through the first lifting tube 13 and the second lifting tube 23, and the two ends of the first connecting shaft 40 are also connected to the first driving component and the second driving component. In addition, the first connecting shaft 40 connected to the first driving component also passes through the first driving component. It should be noted that when the first connecting shaft 40 rotates, the first driving component and the second driving component operate synchronously, thereby driving the first lifting tube 13 or the second lifting tube 23 to move away from the ground, thereby realizing the lifting and lowering of the lifting table. It should also be noted that a first gear component is also provided at the end of the first connecting shaft 40 passing through the first driving component.

[0038] Among them, the lifting table with a self-locking hand-cranked device also includes a self-locking component 50, which is arranged on the outside of one of the first fixed frames 31, and the self-locking component 50 is also connected to the second gear member. In addition, the user can manually rotate the self-locking component 50 to drive the first connecting shaft 40 to rotate, or the user can manually lock the self-locking component 50 to prevent the first connecting shaft 40 from rotating, thereby limiting the height of the lifting table.

[0039] It should be noted that the self-locking component 50 includes a first connecting plate 51 and a second connecting plate 52, and the first connecting plate 51 and the second connecting plate 52 are arranged opposite to each other and separated by a predetermined distance, and the first connecting plate 51 and the second connecting plate 52 are also fixedly connected to the external table board to limit the positions of the first connecting plate 51 and the second connecting plate 52. It should also be noted that the first connecting plate 51 has a first assembly hole, and the second connecting plate 52 has a second assembly hole.

[0040] Furthermore, the self-locking assembly 50 also includes a second connecting shaft 53, a rotating block 54, a second connecting rod 55 and a cover plate 56, wherein the cover plate 56 is fixedly connected to the side of the first connecting plate 51 close to the first fixed frame 31, and the cover plate 56 and the first connecting plate 51 together form a cavity, and the rotating block 54 is rotatably arranged in the cavity, one end of the second connecting shaft 53 passes through the first lifting tube 13 and faces the end of the first connecting shaft 40, and the other end passes through the cover plate 56, the rotating block 54, the first assembly hole and the second assembly hole in sequence, and is placed outside. In addition, one end of the second connecting rod 55 abuts against the side of the first connecting plate 51 close to the second connecting plate 52, and the other end also passes through the second assembly hole and is placed outside. In addition, one end of the rotating block 54 is placed in the first assembly hole, and the other end is rotatably connected to the side of the cover plate 56 close to the first connecting plate 51. It should be noted that a torsion spring 200 is also provided on the rotating block 55. Specifically, when the table rises, the torsion spring 200 is relaxed, and when the table moves downward, the torsion spring 200 increases resistance, thereby improving the self-locking effect.

[0041] A second gear member is also provided at the end of the second connecting shaft 53 opposite to the end of the first connecting shaft. The second gear member is meshedly connected with the first gear member, so that when the second connecting shaft 53 rotates, the first connecting shaft rotates synchronously.

[0042] It should be noted that one end of the second connecting rod 55 has a matching hole 5502, the matching hole 5502 penetrates the second connecting rod 55, and the end of the first connecting shaft 40 away from the first fixing frame 31 is placed in the matching hole 5502, and the matching hole 5502 is a hexagonal hole, and the cross section of the first connecting shaft 40 is hexagonal, that is, when the second connecting rod 55 rotates, the second connecting shaft 53 rotates synchronously. And those skilled in the art should understand that the second assembly hole is also provided with a bearing, and the bearing is matched with the second connecting rod 55.

[0043] In addition, the self-locking assembly 50 also includes a handle 57, and the handle 57 has a connecting portion, an extending portion and a gripping portion, and the two ends of the extending portion are respectively connected to the connecting portion and the gripping portion, and the connecting portion and the gripping portion are both perpendicular to the extending portion, and the connecting portion is parallel to the gripping portion. The end of the second connecting rod 55 passing through the second assembly hole also has a second notch 5501, and the second notch 5501 also penetrates the second connecting rod 55, and the middle section of the second notch 5501 is also connected to the matching hole, wherein the end of the connecting portion away from the extending portion is rotatably arranged in the second notch 5501. The user can rotate the handle 57, that is, the connecting portion is parallel to the second connecting rod 55, and at this time, the user can rotate the handle 57 by holding the gripping portion, thereby driving the second connecting rod 55 to rotate. On the contrary, when it is necessary to prevent the second connecting rod 55 from rotating, the user rotates the handle 57, that is, the connecting part is perpendicular to the second connecting rod 55, and at the same time makes the gripping part contact the external table board, thereby limiting the rotation of the handle 57. At this time, the second connecting rod 55 cannot rotate, thereby achieving a self-locking effect.

[0044] It should be further explained that the end of the connecting portion away from the extending portion also has an arc groove, and a telescopic assembly 200 is also arranged in the assembly hole 5502, and the telescopic assembly is also facing the arc groove. Specifically, the telescopic assembly 200 includes a steel ball and a spring, wherein the external pin passes through the second connecting rod 55, and one end of the spring abuts against the second connecting rod, and the other end contacts the steel ball, wherein when the user straightens the handle, the arc groove cooperates with the steel ball, so that the telescopic assembly 200 can play a positioning role. In addition, a limiting sleeve 300 can be slidably arranged on the connecting portion, that is, when the user abuts the limiting sleeve 300 against the second connecting plate 52, the end of the second connecting rod 52 cooperates with the limiting sleeve 300, so that the user can turn the handle 57 conveniently, and vice versa, when the limiting sleeve is separated from the second connecting rod 55, the user can fold the handle 57.

[0045] In summary, the lifting table with a self-locking hand crank device based on the embodiment of the present application is explained, which provides the lifting table with a self-locking hand crank device with advantages such as easy use, high practicality, and a self-locking hand crank device.

[0046] It is worth mentioning that in the embodiment of the present application, the lifting table with a self-locking hand-cranked device has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the lifting table with a self-locking hand-cranked device provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0047] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A lifting table with a self-locking hand-crank device, characterized in that: The lifting table with a self-locking hand-cranking device comprises: A frame assembly, the frame assembly comprising a first lifting assembly and a second lifting assembly, the first lifting assembly and the second lifting assembly are arranged opposite to each other and are separated by a predetermined distance; a first connecting shaft, wherein both ends of the first connecting shaft are respectively connected to the sides of the first lifting assembly and the second lifting assembly that are close to each other; and A self-locking component is arranged on the outside of the first lifting component, and the self-locking component is also connected to the first connecting shaft and is arranged to drive the first connecting shaft to rotate.

2. The lifting table with a self-locking hand-cranked device according to claim 1, wherein the first lifting component includes a first base plate, a first fixed tube and a first lifting tube, the first base plate is arranged on the ground, one end of the first fixed tube is fixedly connected to a side of the first base plate away from the bottom surface, and the first lifting tube is movably arranged in the first fixed tube.

3. The lifting table with a self-locking hand-cranked device according to claim 2, wherein the second lifting assembly includes a second base plate, a second fixed tube and a second lifting tube, the second base plate is arranged on the ground, one end of the second fixed tube is fixedly connected to a side of the second base plate away from the bottom surface, and the second lifting tube is movably arranged in the second fixed tube.

4. The lifting table with a self-locking hand-cranked device according to claim 3, wherein the frame assembly also includes a connecting assembly, the connecting assembly includes two first fixed frames, the two first fixed frames are arranged opposite to each other and spaced a predetermined distance apart, and one end of the two first fixed frames is fixedly connected to a side of the first lifting tube close to the second lifting tube.

5. The lifting table with a self-locking hand-cranked device according to claim 4, wherein the two ends of the connecting component are respectively connected to the sides of the first lifting component and the second lifting component that are close to each other, and the connecting component is arranged horizontally and is flush with the height of the first lifting component or the second lifting component, the connecting component also includes two second fixed frames, the two second fixed frames are arranged opposite to each other and are spaced a predetermined distance apart, and one end of the two second fixed frames is fixedly connected to the side of the second lifting tube close to the second lifting tube, the connecting component also includes two movable frames, one end of the movable frames is respectively sleeved in the two first fixed frames, and the other end of the movable frames is respectively sleeved in the two second fixed frames.

6. A lifting table with a self-locking hand-cranked device according to claim 5, wherein the self-locking component includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged opposite to each other and are separated by a predetermined distance, the first connecting plate has a first assembly hole, and the second connecting plate has a second assembly hole.

7. A lifting table with a self-locking hand-cranked device according to claim 6, wherein the self-locking component further includes a second connecting shaft, a rotating block, a second connecting rod and a cover plate, the cover plate is fixedly connected to a side of the first connecting plate close to the first fixed frame, and the cover plate and the first connecting plate together form a cavity, and the rotating block is rotatably arranged in the cavity, one end of the second connecting shaft passes through the first lifting tube and faces the end of the first connecting shaft, and the other end passes through the cover plate, the rotating block, the first assembly hole and the second assembly hole in sequence and is placed outside, in addition, one end of the second connecting rod abuts against a side of the first connecting plate close to the second connecting plate, and the other end also passes through the second assembly hole and is placed outside.

8. The lifting table with a self-locking hand-cranked device according to claim 7, wherein one end of the rotating block is placed in the first assembly hole, and the other end is rotatably connected to the side of the cover plate close to the first connecting plate, one end of the second connecting rod has a matching hole, the matching hole passes through the second connecting rod, and the end of the first connecting shaft away from the first fixing frame is placed in the matching hole, and the matching hole is a hexagonal hole, and the cross-section of the first connecting shaft is hexagonal.

9. A lifting table with a self-locking hand-cranked device according to claim 8, wherein the self-locking component also includes a handle, the handle having a connecting portion, an extending portion and a gripping portion, the two ends of the extending portion are respectively connected to the connecting portion and the gripping portion, and the connecting portion and the gripping portion are both perpendicular to the extending portion, the connecting portion is parallel to the gripping portion, wherein the end of the second connecting rod passing through the second assembly hole also has a second notch, the second notch also penetrates the second connecting rod, and the middle section of the second notch is also connected to the matching hole, wherein the end of the connecting portion facing away from the extending portion is rotatably arranged in the second notch.

Images